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55lida55
@55lida55
August 2021
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найти массу оксида лития,образуещегося при сгорание 3,5г лития ?
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ckovoroda
N(Li)=3.5/7=0.5 моль
4Li+O2=2Li2O
n(Li2O)=0.5*2/4=0.25 моль
m(Li2O)=0.25*30=7.5 г
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Answers & Comments
4Li+O2=2Li2O
n(Li2O)=0.5*2/4=0.25 моль
m(Li2O)=0.25*30=7.5 г